Bosch 1x PRO Metal Longlife Cutting Disc for Large Angle Grinder and Bore 22.23 mm (for Steel, Ø 230 mm, Professional Accessory Large Angle Grinder)

First up, a disclaimer that I really don't have a lot of experience of competing products. However, what I can say is that these fit the grinder perfectly, there was no wobble, it went through a load of robust metal ducting like paper, and did it all wearing down only a small amount. I purchased three discs to complete the job and in the end the first one is still in good condition. Considering the price I can't really find anything to complain about.Quick tip for other newbies - make sure you get a metal-cutting shroud/guard for your grinder - unless you want to pretend you're in Flashdance

I bought 4 of these thinking they would last as long as my previous discs (not very). Surpassed my expectations - completed the entire job with just one disc! I think this will be my ‘go to’ disc from now on. Extremely durable in my opinion and great value.

As a metal cutting disc this is very good - easy, clean cuts when new. Like all such discs it will wear depending on what you're cutting. I used on heavy galvanised tube so about lasted the job. Watch out for the disc breaking up and swap on to a new as soon as it's needed. Cheap enough not to risk your eyesight (goggles a must).

Did the job perfectly

A relative has a Bosch 600 grinder that needed a new blade to cut metal, this did the job effortlessly. Great blade at a great price and super quick delivery by Amazon Prime.

It cut the metal hoe I was narrowing down to required width without problems.

Good quality and fast delivery

I purchased these to cut the re-bar in concrete posts. Alternating with a concrete cutting disk as appropriate.My impression is they 'cut' by overheating the metal as it glows red and then the disk passes through. So I'm not convinced it would cut an accurate 'line' in sheet metal albeit I haven't tried to.In the end I gave up on these and the concrete discs and used a multipurpose disk that cut through all parts of the post with ease and much quicker through the re-bar than this 'metal' cutting disc.In fairness I did not have a need to cut purely through metal so cannot comment on that application but I did 'clear' the concrete from around each re-bar before using this disc and that is the basis of this review.Update:I have just had reason to cut through an approx 2 mm hollow alloy tube and to be fair this disc cut through easily although seemed to wear down quite quickly. It cut a reasonably true line although quite thick as the disc is quite thick so for this job it worked well. So I may or may not consider buying again.